#slider {
  position: relative;
  /* overflow: hidden; */
  margin: 1.04167vw auto 0 auto;
  border-radius: 0.5213vw;
}
.calibox{

  overflow: hidden;
}
#slider ul {
  position: relative;
  margin: 0 auto;
  padding: 0;
  height: 18.75vw;
  width: 50.104vw;
  list-style: none;
  overflow: hidden;
}



div.control_prev, div.control_next {
  position: absolute;
  top: 40%;
  border-radius: 50%;
  z-index: 999;
  display: block;
  padding: 0.5% 1.8%;
  width: auto;
  height: auto;
  background: none;
  color: #006429;
  border : 2px solid#006429;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.77083vw;
  opacity: 0.8;
  cursor: pointer;
}

div.control_prev:hover, div.control_next:hover {
  opacity: 1;
  -webkit-transition: all 0.2s ease;
}

div.control_prev {

    font-family: "宋体";
}


.calibox{
  width: 50.72917vw ;
  position: relative;
  left: -5.2083vw;
}